An integral part of Shimano's 11-speed road lineup the Ultegra FC-08 crank builds upon Shimano's legendary front shifting and transmission efficiency. This crank is designed to provide stiffness strength weight savings and rotational performance.Hollowtech hollow forged crank arms not only the bike's weight but decreases rotating mass to aid in acceleration Hollowtech technology reduces weight without reducing the crank's strength and rigidity Outer ring's Hollowglide technology cuts down on weight yet maintains strength for better power transfer and quicker and more precise shifting Compatible with Shimano HG-EV and HG-X11 chains 43.5mm chainline / 146mm Q-factor Asymmetrical 110 BCD For outboard bottom brackets (sold separately)
| Rings | 50/34, 52/36 |
| Number of Chainrings | Double |
| Drivetrain Speeds | 11 |
| Chainring BCD | 110 Shimano Asymmetric |
| Chainline/Hub Compatibility | 135/142 Road Disc Hubs > 415 mm Chainstay |
| Color | Black |
| Crank Length (mm) | 165, 170, 172.5, 175 |
| Crank Intended Use | Road |
| Weight | 674, 681 |
| BB Included | No |
| Pedal Spindle | 9/16" |
| Spindle Interface Type | Shimano Hollowtech II |
| Defined Color | Black |
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